How to digitally create polarizer effect

Nikon AF Nikkor 20mm f/2.8D

12/12/2006 06:57:49 AM · #1

I shot couple of Picture when there was overcast day. Sky is totally washed out.
I want to create Polarizer digitally.

second solution will be i digitally create more bluer sky.

Can any one help me

LanceW

Nikon Z9

12/12/2006 07:14:57 AM · #2

A polarizer on your camera wouldn't do anything but help with reflections on an overcast day anyway. Not much you can do other than completely replace the sky digitally.

Nikon AF Nikkor 20mm f/2.8D

12/12/2006 07:26:13 AM · #3

When i said Digitally create Polarizer effect, i meant i want deep blue Sky ( i assume this is what polarizer will do)

How can digitally create Skyline

LanceW

Nikon Z9

12/12/2006 07:28:56 AM · #4

Originally posted by General:

When i said Digitally create Polarizer effect, i meant i want deep blue Sky ( i assume this is what polarizer will do)

How can digitally create Skyline

Sure, when it's sunny out and you are pointing relatively 90 degrees to the sun, a polarizer will do that.

You said your images were taken on a cloudy day though. Polarizers do not have a magic button I'm afraid that removes clouds. ;-)

As I said, if you want to turn your sky blue, you will need to simply replace the cloudy sky with a sunny blue sky, although doing that typically results in a pretty fake looking image.

Tamron SP AF 24-135mm f/3.5-5.6 AD Aspherical IF for Canon

12/12/2006 07:43:02 AM · #5

Thanks toohip, any Tutorial too create fake skyline

nards656

Canon EOS-300D Rebel

12/12/2006 07:50:36 AM · #6

We warn you, young sir, you choose a hard road.

"Digitally create" is not what you probably want to do. What you need is a good photo of the sky, taken from the same perspective, with a similar lens and zoom setting, on a good day. Why the same perspective? Because looking at the sky out toward the horizon is totally different than looking upward at it. Clouds "look" different. Why the lens and zoom setting? You don't want the distortions to be different. Focus point also comes into play. If your subject is close, the sky probably shouldn't be in crisp clear focus, or it will contribute to the "fake" look.

Once you have a sky that matches the photo, the Photoshop work begins. Selections, masks, layer opacity, blending mode, all that. It's not a technically difficult thing, but it is VERY hard to do well. Patience is critical if you want a great photo.

Of course, if you're just trying to make Grandma think the sky was really blue on that rainy day, you can probably take this advice and burn it.

You're not looking for a polarizer effect, I don't think. What I think you want is a sky that appears to have been shot with a polarizer on the lens.

Just to throw this in, "Polarizing" is one effect that Photoshop is almost useless for. It can be SORT OF duplicated, but the real effect is only possible at the time of shooting.

Bugzeye

Fisher Price Kid-Tough Digital

12/12/2006 08:34:56 AM · #7

You have alot of options. Can you show us one or both of the pictures so we can see what your up against?

Originally posted by General:

any Tutorial too create fake skyline

Sigma 18-200mm f/3.5-6.3 DC OS for Canon

12/12/2006 09:31:57 AM · #8

I will try to upload Snap ASAP

ElGordo

Canon EOS-400D Rebel XTi

12/12/2006 11:35:50 AM · #9

Using RGB mode (in photoshop) select the blue channel. Go to 'filters'>'sharpening'> 'unsharp mask'. Use radius 250, amount 25%, and then check the result, adjust as necessary. Further enhancement can be accomplished by very slight adjustments of contrast and brightness. It is easy to overdo contrast and brightness, so be careful. Not as good as using a polarizing filter at time of capture, but does a fair simulation. Does absolutely nothing for polarized reflections!!!

ElGordo

Canon EOS-400D Rebel XTi

Sigma 18-200mm f/3.5-6.3 DC OS for Canon

12/12/2006 11:41:32 AM · #10

Apologies for the multiple post, my Internet service is very bad today.

12/13/2006 01:23:46 AM · #11

I have uploaded snap.
This is Golden Temple, most sacred temple of Sikhs from India, It is called Gurudwara or gurdwara.

What is a Gurudawara?

what is a Golden Temple ?

Picture that needs New Sky Line

Night Photo of Golden Temple
Night Photo of Golden Temple -2

Message edited by author 2006-12-13 01:30:17.

12/13/2006 01:34:23 AM · #12

Image 1 is kind of effect i am thinking for.( i think it bit over the top in this image though)
Image 1

Image 2

image 2 is bit realistic.

12/13/2006 06:08:12 AM · #13

bump

Fisher Price Kid-Tough Digital

12/13/2006 07:07:31 AM · #14

bump

Bugzeye

12/13/2006 08:44:40 AM · #15

The photo you want to change the sky line on should be pretty simple for you to do. However the white building is going to be tricky to work around you will definately want to using some masking.

Canon RF 24-70mm f/2.8 L IS

12/13/2006 09:07:22 AM · #16

I have uploaded the snaps, just let me know the tutorials please

kirbic

Canon EOS R5

12/13/2006 10:21:50 AM · #17

Here's a quick edit:

This was done with very simple selection (gradient) to show what can be done with what's there, without resorting to wholesale replacement of the sky. This is by no means the best that can be done, it's about a 5-minute edit. Processing details on the image.

Nikon AF Nikkor 50mm f/1.8D

12/13/2006 10:49:48 AM · #18

Thanks alot.

BTW what does everyone think of the night Photo

Again thanks Kirbic

_eug

Nikon D50

12/13/2006 11:21:03 AM · #19

Originally posted by General:

Image 1 is kind of effect i am thinking for.( i think it bit over the top in this image though)
Image 1
Image 2

image 2 is bit realistic.

EW! WHY DOES YOUR SITE RESIZE MY BROWSER TO THE SIZE OF YOUR PICTURE? NOT COOL! NOT COOL AT ALL!

Brad

Olympus OM-D E-M1

Olympus 40-150mm f/2.8 PRO M.Zuiko

12/13/2006 11:35:09 AM · #20

Originally posted by General:

I shot couple of Picture when there was overcast day. Sky is totally washed out.
I want to create Polarizer digitally.

Found this on Ken Rockwell's site:

Make a new Layer

LAYER > NEW > LAYER. In the box that pops up:

Name the layer something like GRAD and set MODE drop-down to SOFT LIGHT. Click OK.

Your new layer should be highlighted in the layers pallet on your lower right, and it should be transparent. Photoshop shows transparency as a gray checkerboard.

Create a black-to-transparent gradient from top to horizon in the new layer

Select GRADIENT TOOL from the tools palette on the upper left. The Grad tool is halfway down the right side of the tools pallet and is shared with the Paint Bucket Tool. You might have to click and hold the Paint Bucket to get the grad tool.

Be sure you have the default foreground and background colors, black and white, chosen. These colors are seen as the two overlapping color squares towards the bottom of the tools palette. You can reset them to default black and white by pressing the tiny little black-and-white pair of overlapping squares next to them, or just press "D" on your keyboard.

Make sure the "linear" option is selected as the first of five little icons on the top middle left of the gradient tool option bar across the top of your screen. Hover over it and you'll see it say "linear gradient."

Select the black-to-transparent grad. Do this by clicking the little arrow to the right of the grad seen at the top left of the top tool options bar. An illustrated menu of grads will drop down. Choose the one that goes from black to transparent (gray checkerboard).

Put your mouse at the top of the image. Click, hold and drag it straight down till you reach the horizon. Release it at the horizon. You can ensure that this is straight by also holding the Shift key while you do this.

You now should see a little dark-topped grad in the layers palette., and even better, the clouds should have gotten dark and scary looking at the top of your image. The brightest parts at the top should have stayed bright. This is a handy effect all by itself.

Create an Adjustment Layer between the two existing layers

Click on the Background layer in the layers palette. It will highlight in blue.

Click and hold the black/white circle at the bottom of the layers palette.

Choose Selective Color from the drop down menu. Release your mouse.

Choose Cyans at the top. Then set the Cyan slider to 100% and the Magenta slider to 100%. Don't click OK yet.

Choose Blues at the top. Then set the Cyan slider to 100%, the Magenta slider to 100%. Click OK.

You can fool around with the selective color settings to your heart's content. Just double click the black/white circle on the left of the middle blue highlighted layer in the layers palette. and choose different values for the sliders under Cyans and Blues. 60% are also good values. Leave the black sliders at zero. Also try about 25% for the yellow slider under Blues.

Message edited by author 2006-12-13 11:35:32.

12/13/2006 12:45:04 PM · #21

Originally posted by _eug:

Originally posted by General:
Image 1 is kind of effect i am thinking for.( i think it bit over the top in this image though)
Image 1
Image 2

image 2 is bit realistic.

EW! WHY DOES YOUR SITE RESIZE MY BROWSER TO THE SIZE OF YOUR PICTURE? NOT COOL! NOT COOL AT ALL!

I am not sure why does it do that, but it's just a free image hosting site not my web site

Olympus 40-150mm f/2.8 PRO M.Zuiko

12/13/2006 12:53:58 PM · #22

Thanks Brad alot

Brad

Olympus OM-D E-M1

12/13/2006 02:01:00 PM · #23

And when all else fails, substitute:

-- to -->

Looks great in B&W too

Considering a 67kb original...
:)

Message edited by author 2006-12-13 14:19:18.